Machine for beading sheet metal



(No Model.) v 2 Sheets-Sh'eet 1. W. J. BAYRER.

MACHINE FOR BEADING. SHEET METAL-.

No. 388,471 Patented Aug. 28, 1888."

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, UNITED STATES PATENT OFFICE.

WILLIAM J. BAYRER, or SOUTHINGTON, CONNECTICUT.

MACHINE FOR BEADING SHEET METAL.

SPECIFICATION forming part of Letters Patent No. 388,471, dated August28, 1888.

Application filed December 3,1387. Serial No. 256,896. (No model.)

' machines for beading sheet metal, the object ing my invention.

being to simplify and strengthen such machines and to increase theirdurability and general efficiency in use.

With these ends in view my invention consists in a peculiar constructionof the box, in a coupler secured to the opposite faces of the rigidhorns inclosing the bead-roller shafts, in a rocking block between theoperating head and screw, and in certain other details of constructionand combinations of parts, as will be hereinafter described, and pointedout in the claims.

In the accompanying drawings, Figure 1 is a view in side elevation of amachine embody- Fig. 2 is a view thereof in front elevation with thebeading-rolls re moved. Fig. 3 is a similar rear view of the machinewith the operating-crank broken away. Fig. a isa View of the machine invertical longitudinal section. Fig. 5 is a detached view of the coupler;and Fig. 6 is a similar view of the operatinghead and theoperatingscrew, together with the cross-piece and parallel upright rods.

The box 0 of my improved machine is cast in one piece, with its rear endclosed by asolid or continuous wall, whereby great strength is secured.The upper horn or casing, A, and the lower horn o r casing, 13, of themachine are cast integral with the said box and project in parallellines from the forward face thereof. The said upper horn is traversed byan opening, D, receiving the driving-shaft E, and shaped to permit theshaft to be raised and lowered, for which purpose it is mounted at itsrear end in a bearing, F, located in an opening, Z, formed in the rearwall of the box 0, and hung on centers A A, extending into such openingfrom opposite sides of the box. The said rear end of the shaft isthreaded, and

clasped by an adjustable collar or clamp, B, bearing against the outerface of the said bearing and holding the shaft in place against undueendwise play. A pinion, G, carried by such shaft, meshes into a similarpinion, H,

carried by the driven shaft I, which extends through a suitable opening,J, in the lower horn, B, and has bearing in an opening, 0, formed in therear wall of the box.

The rear end of the shaft E is provided with a handle, K, for turningit, and the forward end with a beading-roll, L, co-operating with asimilar beading-roll, 'M, mounted upon the adjacent end of the drivenshaft. Each horn is provided with two parallel horizontal ribs, N,respectively located upon its opposite sides and extending throughoutits length. The said horns are coupled together against spreading underthe great outward pressure put upon them by the operation of the machineby a coupler consisting of two blocks, 0 O, and a screw, 1?, each blockbeing provided with two slots, Q Q, opening inward, and a perforated andthreaded lug, R, located between such slots and receiving the screw 1?,binding the blocks together. These blocks are respectively placed onopposite sides of the horns, so that the ribs thereof will enter theirslots, as shown by Fig. 2 of the drawings. \Vhen the blocks are soplaced, the screw is passed through their lugs for holding themtogether. The coupler so formed is laterally adjustable upon theparallel ribs toward and away from the outer ends of the horns, and mayhave theadditional function of a gage, the place of which it supplies inthe form of machine herein represented.

The operating-screw S of the machine passes through an upright yoke, T,cast integral with the forward end of the upper horn, and is providedwith a shoulder, U, supporting a crosspiece, V, receiving the upper endsof two upright parallel rods, W \V, playing freely through the yoke andattached at their lower ends to a rocking'block, X, pivoted in the upperend of the operating-head Y and impinged by the lower end of the screw.The flexible connection thus established between the screw and headrelieves the screw from the strain and wear put upon it when the head isinclined with reference to its lower end by the raising and lowering ofthe suspended driving shaft as provided for.

By casting the frame as described and in one piece the expense of makingthe machine is reduced, and great rigidity and strength are secured inthe finished tool.

The coupler limiting the horns takes a part of the strain thrown uponthem by the operation of the machine, whereby they are prevented fromspreading and destroying the accuracy of the work being done, and alsofrom breaking off under the great pressure from Within outward, beforereferred to.

The rocking or flexible connection between the operating screw and head,relieves the screw from strain and wear, and therefore makes the screweasier to operate and prolongs the life of the machine.

Having fullydescribed my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a machinefor beading sheet metal, the combination, with a box castin one piece and having at its rear end a continuous or solid wallprovided with two openings and furnished atits forward end with twohorns, of two shafts respectively located in such horns and eachextending into such box and carrying a beadroller, a coupler secured tothe opposite faces of the horns and adjustable upon them, anoperating-head for working the upper shaft, and an operating-screwflexibly connected with such head, substantially as set forth.

2. In a machine for beading sheet metal, the combination, with twoparallel horns, each inclosing a shaft carrying a bead-roller, of acoupler binding such horns together and composed of two partsrespectively secured to the opposite faces of the horns, substantiallyas set forth.

3. In a machine for beading sheet metal, the combination, with twoparallel horns, each inclosing a shaft carrying a bead-roller, of acoupler binding such horns together, the horns being provided with ribsand the coupler with recesses to receive the same, the coupler beingarranged to slide horizontally upon the horns, substantially as setforth.

4. In a machine for beading sheet metal, the combination, with twoshafts, each carrying a bead-roller, of two rigid horns respectivelyinclosing such shafts, whereby each shaft is supported virtuallythroughoutits length, and a coupler consisting of two parts applied tothe opposite faces of such horns and united between the horns,substantially as set forth.

5. A machine for beading sheet metal, having two parallel horns, eachprovided with two ribs respectively located upon its opposite sides, auda coupler engaging with such ribs and binding the horns togetheragainstpressure tending to spread them apart, substantially as setforth. i

6. A machine for beading sheet metal, having two parallel horns, eachprovided with two ribs respectively located upon its opposit e sides,and a coupler consisting of two slot ted blocks, and a screw unitingthem and ap plied to the horns to couple them together against pressuretending to spread them apart, substantially as set forth.

7. A machine for beading sheet metal, hav ing two horns, a rockingdriving-shaft extending through the upper horn, a yoke located upon suchhorn, an operating-head secured to the adjacent end of the shaft, anoperatingscrew mounted in the yoke, a rocking block pivoted to suchhead, and connection between such block and the screw, substantially asset forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

IVILLIAM J. BAYRER.

IVitnesses:

CHAS. B. SHUMWAY, M. S. SEELEY.

